Portable charger for smart watch



FIG. 1 is a top view of a portable charger for smart watch showing my design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines present in the figures are included for the purpose of illustrating portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a portable charger for a smart watch, as shown and described. 